A fire protection estimate lives or dies on two numbers: how many heads, and what the remote area demands. You send the plan set — sprinkler layout, riser diagram, hydraulic calculations if they exist, and the spec book. As a fire protection estimating company, we take off Division 21 by room, by floor, and by pipe diameter so your material order and your labor hours match the drawings.
- Deliverable
- Excel estimate + marked-up PDF plans
- Organized by
- CSI MasterFormat section
- Turnaround
- 24–48 hours for most projects
- Pricing
- ZIP-code-adjusted material and labor pricing
- Software
- Bluebeam Revu, PlanSwift, RSMeans data
The takeoff is organized by CSI MasterFormat division, with 21 13 13 wet pipe system, 21 13 16 dry pipe system, 21 12 00 standpipes, 21 11 00 underground fire service, and 21 30 00 fire pumps broken out separately. Heads are counted EA by type and K-factor, with sprinkler head spacing checked against the reflected ceiling plan. Pipe is measured in linear feet of pipe by diameter and material, including black steel pipe, galvanized pipe, and CPVC pipe. Hangers and bracing, fire sprinkler risers, and valve takeoff items such as the inspector test valve, waterflow detector, and pressure reducing valve are counted, not lumped. If the project touches fire alarm interface, we note it but leave Division 28 to our Fire Alarm & Low Voltage Estimating team. For the full division structure, see Trade Estimating Services by CSI Division.
We use Bluebeam Revu for markups, PlanSwift for on-screen takeoff and quantity extraction, and RSMeans data with ZIP-code-adjusted pricing for material and labor. Turnaround is 24–48 hours for most projects; rush is available. Deliverables are Excel and PDF with marked-up plan sets. If your project is in a state with specific adoption or licensing rules, we also produce Texas estimating and California estimating packages, among others.
Scope of the Division 21 fire protection estimate
We measure the fire suppression scope from the sprinkler plans, riser details, and specifications. The boundary is Division 21: pipe, heads, valves, hangers, standpipes, fire pumps, and underground fire service. We flag where Division 28 fire alarm, Division 09 ceilings, or Division 22 domestic water intersects the work, but those quantities are not in this estimate unless you ask for them.
Wet-Pipe Sprinkler Systems
Count heads by type and K-factor, measure branch lines, cross mains, and feed mains by diameter, and price valves, fittings, and hangers.
EA · LF · CYDry-Pipe and Preaction
Take off dry-pipe and preaction systems including air compressors, dry valves, accelerators, and larger pipe sizes for air volume.
EA · LFStandpipe Systems
Measure Class I, II, and III standpipes: risers, hose valves, pressure-reducing valves, and FDC connections by floor and height.
EA · LF · FLRFire Pumps and Drivers
Count fire pumps, drivers, controllers, jockey pumps, suction and discharge piping, test headers, and concrete pads.
EA · LF · CYUnderground Fire Service
Measure underground fire service main pipe, restrained joints, thrust blocks, gate valves, and trench excavation and backfill.
LF · CY · EASeismic Bracing and Hangers
Count hangers, rods, and seismic bracing by type and length, including sway braces, longitudinal braces, and flexible couplings.
EA · LFFirestopping and Penetrations
Count firestopping at rated wall and floor penetrations by type and rating, including sleeves, sealants, and collar devices.
EA · LFTesting and Inspection
Estimate hydrostatic test, flushing, and air test hours, plus inspection and witness time for AHJ approvals.
HR · EAWhat every fire protection & sprinkler estimating takeoff includes
- Sprinkler heads by type and K-factor, counted EA by room and ceiling type
- Branch line, cross main, and feed main pipe measured LF by diameter and material
- Fittings, couplings, grooved outlets, mechanical tees, and reducers counted by size
- Hangers, rods, and seismic bracing counted EA and LF of rod
- Riser assembly: backflow preventer, OS&Y valve, check valve, FDC, inspector's test, drain, gauges
- Standpipe systems Class I, II, or III with hose valves, risers, and pressure-reducing valves
- Zone control valve assemblies and floor control assemblies counted per zone or floor
- Underground fire service main: pipe LF, restrained joints, thrust blocks, gate valves, trench CY
- Fire pump and driver: pump, controller, jockey pump, suction and discharge piping, test header, pad
- Concealed space coordination: head drops through ceiling grid, escutcheons, finish plates
- Hydrostatic test, flushing, and air test hours, plus inspection and witness time
- Firestopping at rated wall and floor penetrations counted by type and rating
How a fire protection estimator takes off a sprinkler system
- Classify occupancy and hazardWe read the spec and the AHJ notes to confirm light hazard, ordinary hazard Group 1 or Group 2, or extra hazard. That classification sets the density and the remote area, which changes pipe sizes and head spacing. If the plans do not state it, we flag it as an assumption and ask you to confirm with the AHJ. We also check the commodity classification and storage height against NFPA 13 tables, because a change from Class I to Class IV can move the design density and require in-rack sprinklers. The occupancy classification is the single biggest driver of pipe size and water demand, so we never guess it silently.
- Count heads by type and roomWe mark up the plan set in Bluebeam, counting pendent, upright, sidewall, concealed, ESFR, extended coverage, dry pendent, and institutional heads by room and ceiling type. Concealed and recessed heads get a separate count because the escutcheon and finish plate are extra material and labor. We also note head temperature ratings and response type (quick or standard) from the spec, since these affect material cost. Each head is tagged to a room number and ceiling type so you can trace the count back to the drawing. We cross-check the total against the hydraulic calculation's head count when it is provided.
- Measure pipe by diameter and materialBranch lines are measured LF by diameter from the head layout. Cross mains and feed mains are measured from the riser diagram and the plan. We separate Schedule 10 black steel, Schedule 40, CPVC, Type L copper, and galvanized, and note grooved versus threaded joints. Pipe is measured centerline, and we add a waste factor as a separate line item, typically 5% for steel and 7% for CPVC. We also break out pipe by floor and by zone so your material release matches the construction sequence. If the plans show a dry-pipe system, we measure the larger pipe sizes and the slope requirements separately.
- Count fittings, valves, and hangersEach tee, reducer, coupling, and grooved outlet is counted by size and connection type. Hangers are counted EA from the spacing rule, and seismic sway bracing is counted from the lateral and longitudinal bracing details. Rod length is converted to LB using the rod diameter and length. We also count mechanical tees, grooved reducers, and flexible couplings at seismic joints. Valve counts include OS&Y gate valves, butterfly valves, check valves, and zone control assemblies. We verify hanger spacing against NFPA 13 requirements for the pipe diameter and material, because undersized or missing hangers are a common plan omission.
- Build the riser and pump assembliesThe riser assembly is taken off as a line-item list: backflow preventer, OS&Y gate or butterfly valve, check valve, FDC, inspector's test and drain, gauges, and flow switch. Fire pump scope includes pump, driver, controller, jockey pump, suction and discharge piping, test header, and concrete pad. We also count the pressure-reducing valves, relief valves, and the main drain. For standpipes, we count hose valves, cabinets, and pressure-reducing valves by floor. Each assembly is priced as a unit with material and labor separated, so you can see the equipment cost versus the installation cost.
- Price and packageMaterial and labor are priced with RSMeans data adjusted by ZIP code. The final Excel workbook is organized by CSI section with a summary tab, and the PDF includes the marked-up plan set so you can see exactly where each quantity came from. We separate material, labor, and equipment costs, and we list allowances for items that require AHJ confirmation, such as hazard classification and seismic bracing. The workbook also includes a scope boundary sheet and a list of assumptions. Turnaround is 24–48 hours for most projects, and rush service is available.
What we need from you
- Sprinkler plansPlan sheets showing head locations, pipe routing, and riser details. PDF is fine; native CAD helps on large jobs.
- Spec bookDivision 21 specification sections, especially pipe material, joining method, and head types required.
- Hydraulic calculationsIf available, the remote area and design density confirm pipe sizes and pump requirements.
- Riser diagramShows standpipe classes, zone control assemblies, and the service entry configuration.
- Ceiling and wall typesArchitectural reflected ceiling plans tell us where concealed heads and escutcheons are needed.
- Site and utility plansFor underground fire service main routing, trench depth, and connection to the water supply.
- Project ZIP codeDrives the material and labor pricing adjustment and prevailing wage if required.
Sample fire protection takeoff format
This is how a Division 21 takeoff looks in the Excel workbook. Quantities are illustrative for a mid-size commercial project.
| Section | Line item | Qty | Unit | Ref. |
|---|---|---|---|---|
| 21 13 13 | Wet-pipe sprinkler, pendent head K5.6, brass | 1,240 | EA | FP-101 |
| 21 13 13 | Branch line, Sch 10 black steel, 1 in, grooved | 8,400 | LF | FP-102 |
| 21 13 13 | Cross main, Sch 10 black steel, 2½ in, grooved | 1,150 | LF | FP-102 |
| 21 13 13 | Hanger assembly, rod and clevis, 1 in pipe | 480 | EA | FP-103 |
| 21 12 00 | Standpipe, Class I, 4 in riser, manual hose valve | 320 | LF | FP-201 |
| 21 11 00 | Underground fire service, 6 in ductile iron | 180 | LF | C-101 |
| 21 30 00 | Fire pump, electric, 500 GPM at 60 PSI | 1 | EA | FP-301 |
| 21 13 13 | Zone control valve assembly, 2½ in, with flow switch | 6 | EA | FP-104 |
| 21 13 13 | Seismic sway bracing, lateral, 2 in pipe | 24 | EA | FP-105 |
| 21 13 13 | Inspector's test valve and drain, 1 in | 6 | EA | FP-106 |
| 21 12 00 | Pressure-reducing valve, 2½ in, hose valve | 12 | EA | FP-202 |
| 21 11 00 | Thrust block, 6 in pipe, concrete | 4 | EA | C-102 |
| 21 13 13 | Flexible coupling, 2½ in, grooved | 18 | EA | FP-107 |
Units of measure in a fire sprinkler takeoff
Sprinkler quantities are counted and measured in a small set of units. Mixing them up — pipe LF versus head EA — is the fastest way to a wrong material order.
| Item | Unit | How it's measured |
|---|---|---|
| Sprinkler heads | EA | Counted by type and K-factor, grouped by room, floor, and ceiling type |
| Pipe by diameter and material | LF | Measured centerline along branch lines, cross mains, and feed mains |
| Protected area | SF | Floor area under sprinkler protection, used to check density and remote area |
| Design flow | GPM | From the hydraulic calculation, used to size pipe and fire pump |
| Residual and static pressure | PSI | At the street and at the topmost outlet, governs pump and standpipe design |
| Trench excavation for underground | CY | Length × width × depth ÷ 27 for fire service main trench |
| Hanger rod and steel | LB | Rod length × weight per foot, plus trapeze steel weight |
| Hydrostatic test duration | HR | Test hours by system, plus flushing and air test time |
| Fire pump, riser assembly, permits | LS | Lump sum for equipment, controls, and permit packages |
Worked example: one sprinkler branch line and its hangers
This is a step-by-step takeoff of one branch line on an ordinary hazard Group 2 light manufacturing floor. All dimensions and quantities are illustrative.
Given (from the plan):
- Branch line length: 60 ft, 1 in Schedule 10 black steel, grooved.
- Head spacing: 10 ft on center.
- Ceiling: exposed structure, upright heads.
- Hanger spacing: 12 ft on center, rod diameter 3/8 in.
- Seismic bracing: not required by the adopted code edition for this example.
Step 1 — Count heads.
- 60 ft ÷ 10 ft spacing = 6 intervals → 7 heads (one at each end plus intermediates).
- Heads are upright, K5.6, brass, 155°F.
- Quantity: 7 EA.
Step 2 — Measure pipe.
- Branch line pipe: 60 LF of 1 in Schedule 10 black steel.
- No cross main or feed main in this example (they are taken off separately).
- Quantity: 60 LF.
Step 3 — Count fittings.
- One reducing tee at the cross main connection: 1 EA.
- One end cap at the far end: 1 EA.
- Grooved couplings: one at each head drop and at the tee and cap. Assume 2 couplings per head drop (one at the branch line, one at the head) = 14 EA, plus 2 at the tee and cap = 16 EA total.
- Quantity: 1 EA tee, 1 EA cap, 16 EA couplings.
Step 4 — Count hangers.
- 60 ft ÷ 12 ft spacing = 5 intervals → 6 hangers.
- Rod length: assume 18 in per hanger. Convert to feet: 18 in ÷ 12 = 1.5 ft per rod.
- Total rod length: 6 × 1.5 ft = 9 LF.
- Rod weight: 3/8 in rod weighs approximately 0.376 lb/ft. Total rod weight: 9 ft × 0.376 lb/ft = 3.4 LB.
- Clevis hangers: 6 EA.
- Quantity: 6 EA hanger assemblies, 3.4 LB rod.
Step 5 — Apply waste as a separate line.
- Pipe waste: typical 5% for steel → 60 LF × 0.05 = 3 LF. Net order: 63 LF.
- Fitting waste: typical 2% → 16 couplings × 0.02 = 0.32 → round to 1 EA. Net order: 17 EA couplings.
- Head waste: typical 2% → 7 heads × 0.02 = 0.14 → round to 1 EA. Net order: 8 EA heads.
- Hanger waste: typical 2% → 6 hangers × 0.02 = 0.12 → round to 1 EA. Net order: 7 EA hangers.
- Rod waste: typical 5% → 3.4 LB × 0.05 = 0.17 LB. Net order: 3.6 LB.
Step 6 — Extend to the full floor.
- If the floor has 20 identical branch lines, multiply each quantity by 20.
- Total heads: 7 × 20 = 140 EA.
- Total pipe: 60 LF × 20 = 1,200 LF.
- Total hangers: 6 × 20 = 120 EA.
- Total rod: 3.4 LB × 20 = 68 LB.
- Waste is applied after extension, not before, so the waste factor is not compounded.
What this example shows: the takeoff is a sequence of counts and measurements tied to the plan, with waste applied as a separate line item. Every quantity is traceable to a drawing sheet and a specification section. In the Excel workbook, each line carries a reference to the sheet and detail it came from, so you can audit the numbers before you bid.
What drives fire protection installation cost
Relative impact on a typical estimate for this trade, based on estimator judgment. Select a bar for details.
Occupancy hazard
Light hazard, ordinary hazard Group 1 or 2, and extra hazard each carry a different design density and remote area. That changes pipe sizes, head spacing, and sometimes the water supply. A warehouse with high-piled storage may need in-rack sprinklers, which is a separate scope. We check the commodity classification and storage height against NFPA 13 tables. The difference between ordinary hazard Group 1 and Group 2 can move the design density from 0.10 to 0.20 GPM/SF, which may increase pipe sizes and pump capacity. We flag the classification on the summary tab so you can confirm it with the AHJ before you bid.
Light hazard, ordinary hazard Group 1 or 2, and extra hazard each carry a different design density and remote area. That changes pipe sizes, head spacing, and sometimes the water supply. A warehouse with high-piled storage may need in-rack sprinklers, which is a separate scope. We check the commodity classification and storage height against NFPA 13 tables. The difference between ordinary hazard Group 1 and Group 2 can move the design density from 0.10 to 0.20 GPM/SF, which may increase pipe sizes and pump capacity. We flag the classification on the summary tab so you can confirm it with the AHJ before you bid.
Schedule 10 black steel with grooved couplings is common for branch lines. Schedule 40 threaded costs more in labor. CPVC is limited by code and listing. Copper and galvanized appear in corrosive or exposed areas. Each choice changes material cost and labor hours per LF. Grooved joints are faster to install than threaded, but the couplings and grooved fittings add material cost. We separate pipe LF by material and joining method so you can price the difference. We also note where the spec requires a specific listing, such as UL or FM, because that can limit your supplier options.
Where the adopted code edition requires seismic protection, lateral and longitudinal sway bracing, flexible couplings at seismic joints, and restraint at changes of direction all add material and labor. The requirements vary by seismic design category, so we confirm the adopted edition with the local building department. We count each brace type and size from the bracing details, and we convert rod length to LB. We also check the structural notes and geotechnical report for the seismic design category. Missing seismic bracing is a common omission in plan sets, so we flag it if the drawings are silent.
The pump is sized by residual pressure at the street, not by building square footage. A weak water supply can force a larger pump, a suction tank, or both. We take off the pump, controller, jockey pump, test header, and piping as separate line items. We also count the concrete pad, the suction and discharge valves, and the pressure relief valve. If the hydraulic calculation is not provided, we ask for it because the pump size cannot be accurately determined without it. The pump and controller are typically long-lead items, so we note the equipment cost separately from the installation labor.
Class I, II, or III standpipes have different hose valve and cabinet requirements. High-rise work adds pressure-reducing valves, a remote FDC, and a 100 psi residual requirement at the topmost outlet. Each floor adds riser LF and valve assemblies. We count the hose valves, cabinets, and pressure-reducing valves by floor. We also check the standpipe detail for the pipe material and size, which may be larger than the sprinkler riser. The height of the building drives the number of floors and the total riser LF, which is a significant cost item on high-rise projects.
Concealed pendent heads, recessed escutcheons, and finish plates add material and labor compared to standard pendent heads in exposed structure. Ceiling type also affects head drops and coordination with the ceiling grid. We count these separately by ceiling type, using the architectural reflected ceiling plans. The extra labor for cutting and fitting the ceiling grid is not included in the sprinkler scope, but we flag it as a coordination item. In finished spaces, the head finish and alignment can drive rework if not coordinated early, so we note the ceiling type on the takeoff.
In unconditioned spaces, wet-pipe systems require dry pendent heads, heat trace, or insulation to prevent freezing. Dry-pipe and preaction systems use larger pipe sizes, more air compressors, and a dry-pipe valve with a quick-opening device. We check the building envelope and mechanical plans to identify these areas. We count the dry pendent heads, heat trace LF, and insulation separately. The cost difference between a wet-pipe and dry-pipe system in the same area can be substantial, so we flag it as a scope item. We also note the code requirement for the dry-pipe valve location and the air compressor size.
Common scope gaps we catch in a fire protection estimate for contractors
These are the items that most often fall through the cracks between the sprinkler contractor, the GC, and the other trades. We flag them in the takeoff so you can price them or exclude them in writing.
- Ordinary hazard Group 1 vs. Group 2 density difference: many takeoffs default to one classification without confirming commodity and storage height with the AHJ. We flag the assumption on the summary tab.
- Dry-pipe and preaction systems requiring larger pipe sizes, more air compressors, and a dry-pipe valve with a quick-opening device. These are often missing from the base plan set.
- Seismic bracing required by the adopted code edition: lateral and longitudinal sway bracing, and flexible couplings at seismic joints. We check the structural notes and the geotechnical report.
- Fire pump sizing driven by residual pressure at the street, not by building square footage. The hydraulic calculation governs, and we ask for it if it is not in the plan set.
- Backflow preventer and meter assembly ownership: who supplies the RPZ, the vault, and the hot box. We note the boundary on the riser detail.
- FDC location and size, and whether it is wall-mounted, free-standing, or recessed, plus the remote FDC on high-rise work. These appear on the civil and architectural sheets, not the sprinkler sheets.
- Rooftop and mezzanine protection: often omitted when the takeoff stops at the top occupied floor. We check the roof plan and mezzanine framing.
- Concealed head escutcheons, finish plates, and the extra labor for recessed or concealed pendents in finished ceilings. We count these separately by ceiling type.
- Storage rack in-rack sprinklers and rack protection for high-piled storage: a separate scope that rarely appears in the base plan set. We flag it if the occupancy suggests it.
- Freeze protection: dry pendent heads, heat trace, and insulation on wet pipe in unconditioned spaces. We check the building envelope and the mechanical plans.
- Standpipe hose valve cabinets, pressure-reducing valves, and the 100 psi residual requirement at the topmost outlet. These are in the standpipe detail and the spec.
- Permit fees, plan review, and AHJ inspection hours, which vary by jurisdiction and are not a material line item. We list them as a separate allowance.
Sprinkler pipe materials and joining methods
Pipe material and joining method drive both material cost and labor hours per LF. This table compares the common choices on the axes that matter for a Division 21 takeoff.
| Material and joining method | Relative material cost | Joining labor (per LF) | Corrosion resistance | Code limits and typical applications |
|---|---|---|---|---|
| Schedule 10 black steel, grooved | Low | Low | Poor (internal corrosion) | Most common for branch lines and mains in dry, conditioned spaces; UL/FM listed couplings required. |
| Schedule 40 black steel, threaded | Medium | High | Poor (internal corrosion) | Used where grooving is not allowed or for small diameters; labor-intensive; common in retrofit work. |
| CPVC, cemented | Medium | Low | Good (for water quality) | Limited by code and listing to certain occupancies and building heights; not for return air plenums unless listed. |
| Type L copper, soldered or press | High | Medium | Excellent | Used in corrosive environments, exposed areas, and where steel is not allowed; press fittings reduce labor. |
| Galvanized steel, grooved or threaded | High | Medium | Good (external) | Used in exposed or corrosive areas; internal corrosion still possible; requires special couplings. |
| Ductile iron, mechanical joint (underground) | Medium | Medium | Good (external) | Used for underground fire service main; restrained joints and thrust blocks required; check soil conditions. |
Codes, standards, and specifications that govern the takeoff
Model codes
NFPA 13 is the core sprinkler installation standard and the source for hazard classification, design density, remote area, head spacing, and hanger rules. NFPA 14 governs standpipes, including class, hose valve size, and pressure requirements. NFPA 20 covers fire pumps, and NFPA 24 covers underground fire service mains. The International Building Code (IBC) and International Fire Code (IFC) adopt these by reference and set when sprinklers are required. The International Residential Code (IRC) has its own sprinkler provisions for one- and two-family dwellings. The adopted edition of each code varies by jurisdiction, so confirm with the local building department before you finalize quantities. The edition can change head spacing, remote area, and pump requirements.
Industry standards
ASTM A53 and A795 cover black and galvanized steel pipe; ASTM F442 covers CPVC. UL and FM listings govern heads, valves, and couplings, and the spec may require one or both. ASTM A536 covers ductile iron fittings for underground. NFPA 13 references these standards for material acceptance. Seismic bracing design often follows ASCE 7 and the seismic design category from the geotechnical report. Hanger rod and steel are specified by ASTM A36 or A307. The estimator must read the spec to know which listings and standards are required, because they affect supplier options and material cost.
Specification sections
Division 21 sections drive the takeoff. 21 05 00 Common Work Results sets submittals and quality requirements. 21 07 00 covers insulation for freeze protection. 21 11 00 covers underground fire service main, including pipe material, restrained joints, and thrust blocks. 21 12 00 covers standpipes, including class, hose valves, and cabinets. 21 13 00 covers sprinkler systems, with 21 13 13 wet-pipe, 21 13 16 dry-pipe, 21 13 19 preaction, and 21 13 26 deluge. 21 20 00 covers special extinguishing systems, such as clean agent or kitchen hood. 21 30 00 covers fire pumps. Each section states the pipe material, joining method, head types, and valve requirements that change the material and labor lines.
Local amendments
Adopted code editions and local amendments vary by state, county, and city. Some jurisdictions adopt NFPA 13 with amendments that change head spacing, require additional seismic bracing, or set stricter standpipe requirements. Others have local amendments for water supply, backflow prevention, or fire department connection locations. The seismic design category and the adopted building code edition affect bracing quantities. You must confirm the adopted edition and any amendments with the local building department before you bid, because a single amendment can change pipe sizes, pump capacity, or the number of hose valves. We flag the code edition on the summary tab and list the assumptions that need confirmation.
Who uses this fire protection estimate
General contractors
You need a Division 21 number to plug into the bid and to check the sprinkler subcontractor's quote. We give you the head count, pipe LF by diameter, and a clear list of exclusions so you can compare apples to apples.
Fire protection subcontractors
You need a second set of eyes on a large or fast-turnaround bid. We take off the same plans and return a marked-up set so you can see where your quantities differ. That is useful on design-build and negotiated work.
Developers and owners
You need a budget before design is complete. We can take off a preliminary layout and flag the assumptions that drive cost, such as hazard classification, pump size, and standpipe class, so you know what to lock down.
Architects and engineers
You need a quantity check on your own design or a cost opinion for the owner. We measure from your plans and note where the drawings are silent, which helps you close gaps before the bid documents go out.